Explanation of how the number of participants for analysis was determined.
Includes whether analysis was per protocol, intention to treat, or another method.
Also provides relevant details such as imputation technique, as appropriate.

• Participants with detectable HCV-RNA levels after 24 weeks of treatment had to receive 24 weeks of PegIntron, ribavirin and boceprevir (800 mg TID) for 24 additional weeks. Total treatment duration was up to 54 weeks.